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author | Treehugger Robot <android-test-infra-autosubmit@system.gserviceaccount.com> | 2023-09-13 19:43:39 +0000 |
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committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2023-09-13 19:43:39 +0000 |
commit | 272dd65efae631da1dffd0467b02665513b1e41b (patch) | |
tree | 041e9e6dfdc6892044c81e6ead5f247cbb017e1e | |
parent | f35dae6311726fc242c3e16672cc0adb0c9eb2c5 (diff) | |
parent | a86c114dd34a3b08a3c5201ce352bfc6c025c63c (diff) | |
download | libhardware-272dd65efae631da1dffd0467b02665513b1e41b.tar.gz |
Merge "Increase HidRawSensor thread priority to reduce latency" into main am: d88f8e4c58 am: da2289a9f0 am: a86c114dd3
Original change: https://android-review.googlesource.com/c/platform/hardware/libhardware/+/2749180
Change-Id: I69f9d52c013600cb1caeb2605a2261705a5c2fbe
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
-rw-r--r-- | modules/sensors/dynamic_sensor/HidRawSensorDevice.cpp | 12 | ||||
-rw-r--r-- | modules/sensors/dynamic_sensor/HidRawSensorDevice.h | 1 |
2 files changed, 12 insertions, 1 deletions
diff --git a/modules/sensors/dynamic_sensor/HidRawSensorDevice.cpp b/modules/sensors/dynamic_sensor/HidRawSensorDevice.cpp index 8aa4cf92..5bc4abc2 100644 --- a/modules/sensors/dynamic_sensor/HidRawSensorDevice.cpp +++ b/modules/sensors/dynamic_sensor/HidRawSensorDevice.cpp @@ -35,6 +35,15 @@ using namespace Hid::Sensor::PropertyUsage; const std::unordered_set<unsigned int> HidRawSensorDevice::sInterested{ ACCELEROMETER_3D, GYROMETER_3D, COMPASS_3D, CUSTOM}; +void HidRawSensorDevice::enableSchedFifoMode() { + constexpr int kHidRawSensorPriority = 10; // Matches with sensor service priority + struct sched_param param = {0}; + param.sched_priority = kHidRawSensorPriority; + if (sched_setscheduler(getTid(), SCHED_FIFO | SCHED_RESET_ON_FORK, ¶m) != 0) { + ALOGE("Couldn't set SCHED_FIFO for HidRawSensor thread: %s", strerror(errno)); + } +} + sp<HidRawSensorDevice> HidRawSensorDevice::create(const std::string &devName) { sp<HidRawSensorDevice> device(new HidRawSensorDevice(devName)); // offset +1 strong count added by constructor @@ -74,7 +83,8 @@ HidRawSensorDevice::HidRawSensorDevice(const std::string &devName) return; } - run("HidRawSensor"); + run("HidRawSensor", PRIORITY_URGENT_DISPLAY); + enableSchedFifoMode(); mValid = true; } diff --git a/modules/sensors/dynamic_sensor/HidRawSensorDevice.h b/modules/sensors/dynamic_sensor/HidRawSensorDevice.h index 06d435e7..7818bf16 100644 --- a/modules/sensors/dynamic_sensor/HidRawSensorDevice.h +++ b/modules/sensors/dynamic_sensor/HidRawSensorDevice.h @@ -41,6 +41,7 @@ private: // constructor will result in +1 strong count explicit HidRawSensorDevice(const std::string &devName); + void enableSchedFifoMode(); // implement function of Thread virtual bool threadLoop() override; std::unordered_map<unsigned int/*reportId*/, sp<HidRawSensor>> mSensors; |